Add Bocfel interpreter

[projects/chimara/chimara.git] / interpreters / bocfel / iff.h

diff --git a/interpreters/bocfel/iff.h b/interpreters/bocfel/iff.h
new file mode 100644 (file)
index 0000000..fd63d26
--- /dev/null
+++ b/interpreters/bocfel/iff.h
@@ -0,0 +1,31 @@
+#ifndef ZTERP_IFF_H
+#define ZTERP_IFF_H
+
+#include <stdint.h>
+
+#include "io.h"
+
+typedef struct zterp_iff zterp_iff;
+
+/* Translate an IFF tag into the corresponding 32-bit integer. */
+#define STRID(s) ( \
+    (((uint32_t)(s)[0]) << 24) | \
+    (((uint32_t)(s)[1]) << 16) | \
+    (((uint32_t)(s)[2]) <<  8) | \
+    (((uint32_t)(s)[3]) <<  0)   \
+    )
+
+/* Reverse of above. */
+#define IDSTR(n) ((char[5]){ \
+    ((uint32_t)n >> 24) & 0xff, \
+    ((uint32_t)n >> 16) & 0xff, \
+    ((uint32_t)n >>  8) & 0xff, \
+    ((uint32_t)n >>  0) & 0xff, \
+    })
+
+
+void zterp_iff_free(zterp_iff *);
+zterp_iff *zterp_iff_parse(zterp_io *, const char [4]);
+int zterp_iff_find(zterp_iff *, const char [4], uint32_t *);
+
+#endif